There are two ways to go about cropping an image or webcam in OBS; one being faster, and the other still pretty fast but gives you more precise cropping opportunities.

Let’s start with the fastest method:

OBS Alt Cropping (Easiest and Fastest)

The fastest way to crop in OBS Studio is by using the Alt method. Here’s how it works:

Have your webcam or other overlay image source selected in OBS, then simply press and hold your Alt key on the keyboard, then left-click and hold your mouse button on one of the red circles that appear around your source in the preview window and drag in the direction you want to crop.

Alt + Left-Click + Drag

Edit Transform Cropping (Easy and Precise)

Another way to crop your webcam in OBS is to use the Edit Transform option, found in the Transform option when you right-click on your Source.

So select the source you’re wanting to crop, then right-click on the image in the preview window or the Source found under the Sources box, then mouse over Transform, then left-click on the Edit Transform option that pops up (CTR+E for a shortcut).

Once you’re in the Edit Transform settings window, look near the bottom and you’ll see a Crop setting with four different options; Left, Right, Top, Bottom.

Now you can either input numbers into these boxes, or click on the up and down arrows to precisely crop your webcam.

Crop Complete

That’s it! You now know how to crop your webcam in OBS Studio. If you have any questions, please drop them in the comments below.